Title :
The experimental investigation of the beam transportation efficiency through the axial injection system of the U400 cyclotron
Author :
Kalagin, I. ; Ivanenko, I. ; Gulbekian, G.
Author_Institution :
FLNR, JINR, Dubna, Russia
fDate :
6/23/1905 12:00:00 AM
Abstract :
The axial injection system of the U400 cyclotron has been constructed and put into operation since the second half of 1996. With the aim of increasing the transportation and the acceleration coefficients of the injected beams the modernization of this system is done. The double buncher system (Sine and Line types) was put into operation in 1997-1998. The expected acceleration efficiency with the buncher systems is about 70%. At present time, the efficiency for the possible beam intensities is in the region of 20% - 60%. The experimental results of the efficiency investigation of the beam transportation through the axial injection system are present. The results have shown that the main beam losses are at the spiral inflector entrance. The beam losses are actually depended on the beam intensity. The possible methods of decreasing the beam losses are proposed
Keywords :
beam handling equipment; cyclotrons; ion accelerators; ion beams; particle beam bunching; particle beam dynamics; particle beam injection; particle beam stability; U400 cyclotron; acceleration coefficients; axial injection system; beam injection; beam intensities; beam transportation; beam transportation efficiency; buncher systems; double buncher system; spiral inflector entrance; Acceleration; Charge measurement; Current measurement; Cyclotrons; Ion beams; Magnets; Particle beam injection; Solenoids; Spirals; Transportation;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986750
